SU1753533A1 - Sealed lead-in for several cables - Google Patents

Abstract

Usage: devices for introducing fiber-optic cables into distribution sleeves for mounting fiber-optic communication lines on objects. Essence: the input is a case sleeve in which a cable sealing assembly is fastened on the input side, and cable fixation units and fixation units for reinforcing elements on the output side. 7 il.

Description

The invention relates to cable technology, in particular, to devices for inserting fiber optic cables (FOC) into distribution sleeves and so on for the installation of fiber optic communication lines on objects.

BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION Fiber optic cable assemblies are known, in which individual cables are introduced through separate inputs.

Known sealed input multiple cables, comprising a housing, located in it, the seal node in the form of a strip of elastic material with a number of holes corresponding to the number of input cables 4,

The disadvantage of such an input is that when a wok is inserted through it, it is impossible to achieve reliable fixation of the wok, since the wok is such that the optical fiber must lie in it freely and not be subjected to mechanical loads, for which there are channels in the cable design

which passes optical fiber and which do not allow the cable to be firmly clamped with a rubber seal. The second feature of the wok is that in order to unload the optical fiber from axial loads, reinforcing elements are inserted into the cable structure, which must be fixed on the input nodes.

The aim of the invention is to improve the reliability of the input when using it to input the wok.

This goal is achieved by the fact that a hermetic inlet of several cables, comprising a housing, a sealing assembly in it in the form of a strip of elastic material with a number of openings corresponding to the number of input cables, and a pressure element, is provided arranged on the side opposite to the position of the pressure element. fixing units of the outer sheath and reinforcing elements of cables, the body is made in the form of a glass with holes in the bottom, similar to

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SL 00

with

oe s

the gasket holes, from the side of the fixation units in the housing, are made opening the cable openings transverse grooves, the bases of which are turned relative to each other, while the fixing units of the outer sheath are made in the form of strips fixed to the base of the notches, and rings attached to the end surface of the housing.

Figure 1 shows the hermetic input of several cables, the cut; figure 2 - section aa in figure 1; fig. 3 - the same for the option of inputting two cables; Figures 4 and 5 are the same for the three cable entry options; Figure 6 is the same for the option of inputting seven cables; figure 7 - node t in figure 1 (fastening of the reinforcing elements WO.K).

Sealed input of several cables (an input variant for five WOKs is shown) contains a case sleeve 1 fixed to the wall 2 of a housing, there is an opening 8 on the input side of cables 3-7 in sleeve 1, and five openings 9 on the output side The cable seal assembly consists of an elastic gasket 10 and a washer 11 with five holes placed in the opening 8 of the housing 1, which are pressed by the nut 12, two grooves 13 and 14 are made on the cable end side 3-7, in which two screws 15 are fixed strips 16. The groove 13 is made deep to the axis of the holes in the sleeve 1, in which The cables 4, b and 7 pass through. The groove 14 is rotated relative to the groove 13 in such a way that its base passes through the axes of the cable openings 3,4 and 5. Next, a ring 18 is fixed to the end surface of the housing sleeve 1 with screws 17 fastening reinforcing elements of cables.

The number of fixing nodes of the outer sheath of cables, which are a groove with a strap, as well as their mutual orientation, depends on the number of input cables.

The number of fixing nodes of the outer sheath of the cables, which are

the groove with the strap, as well as their mutual orientation, depends on the number of input cables. The number of cables can vary from two to several tens. The greatest

A reasonable number of cables input through one input should not exceed 7-9 pieces). FIG. 2 shows a variant of the arrangement of the wok in the present embodiment for five cables. For this arrangement, the wok, the base of the groove 13 goes along the axis B, and the base of the groove 14 goes along the axis B. For the insertion of two wok (fig. 3), you need one fixing unit for the outer sheath of the cables. The wok (figs, 4 and 5) may need either one fixation unit (figure 5 - axis D), or two nodes (figure 4 - axes E and F). The option for four wok is similar to the option for five wok (figure 2) - only without central

holes. For the input options 6 and 7 of the VOK (Fig. 6), it is necessary to have 3 fixation units (axes 3, I, K).

Claims (2)

Claims Hermetic inlet of several cables comprising a housing, a seal assembly disposed therein in the form of a gasket of an elastic material with a number of openings corresponding to the number of input cables, and a pressure member different in order to increase reliability when inserting fiber optic cables, it is equipped with located on the side, opposite placement of push element, fixing units of the outer sheath and reinforcing elements of cables, the body is made in the form of a glass with holes in the bottom, similar to the gasket holes, from the fixing units in the body there are made opening holes for the cable transverse grooves, the bases of which are turned relative to each other the fixing units of the outer shell of the glasses are made in the form of straps attached to the base of the grooves, and the fixing unit of the reinforcing elements in the form of a ring fixed on the end surface of the body. 17 7 FIG 5 five (till 2. In Shg, 1